Home / 2,445.22-3,372.88-1,449.80

Finding the Fourth Proportional to 2,445.22, 3,372.88 and 1,449.80

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Solution

The fourth proportional to 2,445.22, 3,372.88 and 1,449.80 is: 1,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.22 : 3,372.88 = 1,449.80 : x
  2. Step 2: Convert to fraction form
    2,445.22/3,372.88 = 1,449.80/x
  3. Step 3: Cross multiply
    2,445.22x = 3,372.88 × 1,449.80
  4. Step 4: Simplify right side
    2,445.22x = 4,890,001.42
  5. Step 5: Solve for x
    x = 4,890,001.42/2,445.22
  6. Step 6: Final answer
    x = 1,999.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.